Glass-gage protector



'W. .I. WHITESIDE.

GLASS GAGE PRoTEToR; APPLICATION FILED JULY 12. I919- 1,382,582.PatentedkJune 21, 1921.

WILLIAM J. WHI'IESIDE, OF KEEWATIN, MINNESOTA. V

GLASS-GAGE PROTECTOR.

Specification of Letters Patent. Patented J 21 1921;

Application filed July 12, 1919. 2 Serial No. 310,367.

To all whom it may concern:

Be it known that I, WILLIAMJ. WHITE- SIDE, a citizen of the UnitedStates, residing at Keewatin, in the county of 'Itasca and State ofluinnesota, have invented certain new and useful Improvements in Glass-Gage Protectors, of which the following is a specification.

This invention relates to improvements in water gages for steam boilersand more particularly to a device for protecting the glass tube of sucha gage so as to prevent fracture of the tube through contact with otherobjects and likewise prevent, to a considerable extent, scattering ofthe glass in the event of bursting of the tube.

One of the objects of the present invention is to provide a gageprotector for the purpose stated comprising head members for assemblagewith the ends of the glass tube of the gage, and means connecting thesaid members for protecting the said tube, the said connecting meansbeing adjustable as to length so as to permit of the application of thedevice to gage tubes of various lengths.

In the accompanying drawings:

Figure 1 is a view partly in side elevation and partly in verticalsection illustrating the device embodying the present invention;

Fig. 2 is a horizontal sectional view taken substantially on the line2-2 of Fig. 1;

Fig. 3 is a detail horizontal sectional view through one of theadjustable protector bars, the view being taken substantially on theline 33 of Fig. 1.

In the drawings the gage tube is indicated by the numeral 1 and is asusual of glass so that the height of the water level therein may bereadily observed. The numerals 2 and 3 indicate pipes which arerespectively placed in communication with the boiler above and below thenormal water line therein, and these pipes have enlarged ends 4 whichfit the respective ends of the gage tube 1, as shown in Fig. 1 of thedrawings. The device embodying the present invention includes two headmembers, one indicated by the numeral 5 and the other by the numeral 6,these members being each provided with a bore and being respectivelydisposed to fit the upper and lower ends of the gage tube. Each of themembers is interiorly increased in diameter at its outer end asindicated by the numeral 7 to receive apacking 8 engaged by the enlargedend of the respective pipes 2 and 3 as the case may be. The

said head members 5 and 6 are also exterlorly threaded as indicated bythe numeral 9, and cap nuts lOare fitted thereto and may be tlghtened todraw the said pipes and the respective heads together thus forming awater-tight seal at the ends of the gage tube. The head members 5 and 6are respectively provided at their lower and upper portions withpolygonal extensions 11 to the faces of which are secured the ends ofthe protector bars as will now be described.

Each of the bars referred to above, indicated in general by the numeral12, comprlses a pair of relatively adjustable sectlons, one of saidsections being indicated by the numeral 13 and the other by the numeral14. Each section 14 is in the nature of a length of bar material havingbeveled lateral edges 15, these sections being secured at their upperends as at 16 to the extension 11 of the upper head 5, as clearly shownin Fig. 1 of the drawings. Each of the sections 13 is in the nature of arelatively flat bar provided at its lateral edges with inwardly directedflanges 17 the inner faces of which are inclined so as to provideat therear side of each of the said sections 13 a longitudinally extendingchannel having inclined walls to fit the beveled edges 15 of thesections 14. In this manner the paired sections 13 and 14 are slidablyconnected so that the protecting bar may be adjusted as to length. Thesections 13 are secured at their lower ends as at 18 to the faces of theextension 11 of the head member 6, and in order that the sectionscomprising each bar may be held at adjustment, threaded studs 19 areprovided upon the sections 14 and fit through longitudinally extendingslots 20 formed in the sections 13, wing or similar nuts 21 beingthreaded onto the said studs and being adapted to be tightened to bearagainst washers 22 which in turn bear 3 against the outer faces of therespective sections 13. It will be observed by reference to Figs. 1 and2 of the drawings that adjacent edges of the protecting bars aresufliciently spaced to permit, of the water level in the gage tube beingobserved and yet these bars constitute an effective guard to prevent anyobject striking the tube and causing fracture thereof, and at the sametime the spaces between the bars are sufiiciently narrow to provideagainst any considerable scattering of the glass in the event ofbursting of the gage tube.

Having thus described the invention, what is claimed as new is:

In a device of the class described, head members provided at theiradjacent ends with polygonal extensions, projecting members extendingbetween the head members and each comprising a section secured at oneend to one face of the polygonal extension of one of the head members,and asection secured at one end to the corresponding polygonal face ofthe otherhead member, the sections overlapping and one of the sectionsbeing provided with marginal flanges to engage the lateral edges of theother section, one of the said sections being 15 slottedlongitudinally,'a threaded stud carried b the other section andprojecting throug the slot, and a nut threadedupon. the stud to bearagainst the slotted section.

In testimony whereof I afiix my signature. 20

WILLIAM J. WHITESIDE. Witnesses. I

' JOSEPH KI REN, D. T. OAINE.

